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STMicroelectronics STM8AF6289TAY — Microcontrollers & Processors (MCU / MPU / DSP)

ST STM8AF6289TAY 8-bit MCU, 24 MHz, 64 KB Flash, NRND

MPNSTM8AF6289TAY
NRND

STMicroelectronics STM8A series STM8AF6289TAY 8-bit microcontroller, 24 MHz core, 64 KB Flash, 6 KB RAM, 2 KB EEPROM, 52 I/O, 64-LQFP, -40°C to 85°C, 3V to 5.5V supply.

$3.1952Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

STM8AF6289TAY specifications
ParameterValue
SeriesSTM8A
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))3V ~ 5.5V
Operating temperature-40°C ~ 85°C (TA)
Speed24MHz
PackageTray
RAM size6K x 8
Core size8-Bit
EEPROM size2K x 8
PeripheralsBrown-out Detect/Reset, POR, PWM, WDT
ConnectivityI²C, LINbus, SPI, UART/USART
Number of i (O)52
Core processorSTM8A
Case64-LQFP
Data convertersA/D 16x10b
Program memory size64KB (64K x 8)

Product details

STM8AF6289TAY — 8-bit MCU for automotive body and industrial control

With 52 general-purpose I/O lines, a 16-channel 10-bit ADC, and connectivity options including I²C, LINbus, SPI, and UART/USART, this MCU targets automotive body electronics, industrial control, and sensor-actuator nodes where a wide supply range (3V to 5.5V) and industrial temperature rating (-40°C to 85°C) are required.

NRND — not for new designs

This means STMicroelectronics is not actively promoting it for new projects, though it remains available for existing production runs. Buyers should evaluate last-time-buy quantities or identify a pin-compatible replacement for long-term supply.

Memory and peripheral budget for a control-loop MCU

The 2 KB EEPROM handles calibration constants and fault logs without external storage.

64-pin LQFP — layout and routing

Housed in a 64-LQFP package, this MCU offers 52 I/O pins for interfacing with sensors, actuators, displays, or communication transceivers. Supply range from 3V to 5.5V lets it run on a regulated 3.3V rail or directly off an automotive battery with a simple pre-regulator.

Frequently asked questions

What are the full specifications of STM8AF6289TAY?

Key specs: 8-bit STM8A core at 24 MHz, 64 KB Flash, 6 KB RAM, 2 KB EEPROM, 52 I/O, 16-channel 10-bit ADC, connectivity via I²C, LINbus, SPI, UART/USART, internal oscillator, brown-out detect, POR, PWM, WDT. Package: 64-LQFP, surface mount.